// JavaScript Document

function clsIDCard(CardNo) {
    this.Valid = false;
    this.ID15 = '';
    this.ID18 = '';
    this.Local = '';
    if (CardNo != null)
        this.SetCardNo(CardNo);
}


// 设置身份证号码，15位或者18位
clsIDCard.prototype.SetCardNo = function(CardNo) {
    this.ID15 = '';
    this.ID18 = '';
    this.Local = '';
    CardNo = CardNo.replace(" ", "");
    var strCardNo;
    if (CardNo.length == 18) {
        pattern = /^\d{17}(\d|x|X)$/;
        if (pattern.exec(CardNo) == null)
            return;
        strCardNo = CardNo.toUpperCase();
    } else {
        pattern = /^\d{15}$/;
        if (pattern.exec(CardNo) == null)
            return;
        strCardNo = CardNo.substr(0, 6) + '19' + CardNo.substr(6, 9)
        strCardNo += this.GetVCode(strCardNo);
    }
    this.Valid = this.CheckValid(strCardNo);
}
// 校验身份证有效性
clsIDCard.prototype.IsValid = function() {
    return this.Valid;
}
// 返回生日字符串，格式如下，1981-10-10
clsIDCard.prototype.GetBirthDate = function() {
    var BirthDate = '';
    if (this.Valid)
        BirthDate = this.GetBirthYear() + '-' + this.GetBirthMonth() + '-'
        + this.GetBirthDay();
    return BirthDate;
}
// 返回生日中的年，格式如下，1981
clsIDCard.prototype.GetBirthYear = function() {
    var BirthYear = '';
    if (this.Valid)
        BirthYear = this.ID18.substr(6, 4);
    return BirthYear;
}
// 返回生日中的月，格式如下，10
clsIDCard.prototype.GetBirthMonth = function() {
    var BirthMonth = '';
    if (this.Valid)
        BirthMonth = this.ID18.substr(10, 2);
    if (BirthMonth.charAt(0) == '0')
        BirthMonth = BirthMonth.charAt(1);
    return BirthMonth;
}
// 返回生日中的日，格式如下，10
clsIDCard.prototype.GetBirthDay = function() {
    var BirthDay = '';
    if (this.Valid)
        BirthDay = this.ID18.substr(12, 2);
    return BirthDay;
}

// 返回性别，1：男，0：女
clsIDCard.prototype.GetSex = function() {
    var Sex = '';
    if (this.Valid)
        Sex = this.ID18.charAt(16) % 2;
    return Sex;
}

// 返回15位身份证号码
clsIDCard.prototype.Get15 = function() {
    var ID15 = '';
    if (this.Valid)
        ID15 = this.ID15;
    return ID15;
}

// 返回18位身份证号码
clsIDCard.prototype.Get18 = function() {
    var ID18 = '';
    if (this.Valid)
        ID18 = this.ID18;
    return ID18;
}

// 返回所在省，例如：上海市、浙江省
clsIDCard.prototype.GetLocal = function() {
    var Local = '';
    if (this.Valid)
        Local = this.Local;
    return Local;
}

clsIDCard.prototype.GetVCode = function(CardNo17) {
    var Wi = new Array(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2, 1);
    var Ai = new Array('1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2');
    var cardNoSum = 0;
    for (var i = 0; i < CardNo17.length; i++)
        cardNoSum += CardNo17.charAt(i) * Wi[i];
    var seq = cardNoSum % 11;
    return Ai[seq];
}

clsIDCard.prototype.CheckValid = function(CardNo18) {
    if (this.GetVCode(CardNo18.substr(0, 17)) != CardNo18.charAt(17))
        return false;
    if (!this.IsDate(CardNo18.substr(6, 8)))
        return false;
    var aCity = {
        11 : "北京",
        12 : "天津",
        13 : "河北",
        14 : "山西",
        15 : "内蒙古",
        21 : "辽宁",
        22 : "吉林",
        23 : "黑龙江 ",
        31 : "上海",
        32 : "江苏",
        33 : "浙江",
        34 : "安徽",
        35 : "福建",
        36 : "江西",
        37 : "山东",
        41 : "河南",
        42 : "湖北 ",
        43 : "湖南",
        44 : "广东",
        45 : "广西",
        46 : "海南",
        50 : "重庆",
        51 : "四川",
        52 : "贵州",
        53 : "云南",
        54 : "西藏 ",
        61 : "陕西",
        62 : "甘肃",
        63 : "青海",
        64 : "宁夏",
        65 : "新疆",
        71 : "台湾",
        81 : "香港",
        82 : "澳门",
        91 : "国外"
    };
    if (aCity[parseInt(CardNo18.substr(0, 2))] == null)
        return false;
    this.ID18 = CardNo18;
    this.ID15 = CardNo18.substr(0, 6) + CardNo18.substr(8, 9);
    this.Local = aCity[parseInt(CardNo18.substr(0, 2))];
    return true;
}

clsIDCard.prototype.IsDate = function(strDate) {
    var r = strDate.match(/^(\d{1,4})(\d{1,2})(\d{1,2})$/);
    if (r == null)
        return false;
    var d = new Date(r[1], r[2] - 1, r[3]);
    return (d.getFullYear() == r[1] && (d.getMonth() + 1) == r[2] && d
        .getDate() == r[3]);
}